540787261 has 8 divisors (see below), whose sum is σ = 621181440. Its totient is φ = 461177808.

The previous prime is 540787243. The next prime is 540787271. The reversal of 540787261 is 162787045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 540787261 - 2⁷ = 540787133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540787211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194701 + ... + 197458.

It is an arithmetic number, because the mean of its divisors is an integer number (77647680).

Almost surely, 2^540787261 is an apocalyptic number.

It is an amenable number.

540787261 is a deficient number, since it is larger than the sum of its proper divisors (80394179).

540787261 is a wasteful number, since it uses less digits than its factorization.

540787261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392363.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 540787261 is about 23254.8330675582. The cubic root of 540787261 is about 814.7208252535.

The spelling of 540787261 in words is "five hundred forty million, seven hundred eighty-seven thousand, two hundred sixty-one".